2016
DOI: 10.1021/acsami.5b09690
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Amorphous Molybdenum Sulfide on Graphene–Carbon Nanotube Hybrids as Highly Active Hydrogen Evolution Reaction Catalysts

Abstract: In this study, we report on the deposition of amorphous molybdenum sulfide (MoSx, with x ≈ 3) on a high specific surface area conductive support of Graphene-Carbon Nanotube hybrids (GCNT) as the Hydrogen Evolution Reaction (HER) catalysts. We found that the high surface area GCNT electrode could support the deposition of MoSx at much higher loadings compared with simple porous carbon paper or flat graphite paper. The morphological study showed that MoSx was successfully deposited on and was in good contact wit… Show more

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Cited by 125 publications
(81 citation statements)
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“…230.9 eV corresponds well with the literature value of Mo 5 + 3d 5/2 . [16] In accordance with as tudy conducted by Tang et al, [17] the binding energy differenceb etween Mo 4 + and Mo 5 + has an approximate value of 1.3 eV.T his is in good agreement with the binding energyd ifferenceo bserved for the Mo 4 + 3d 5/2 at 229.5 eV and Mo (A) 3d 5/2 at 230.9 eV in the Riedel-de Hans ample. Another possible explanation is the presence of Mo 4 + in molybdenumo xysulfides (MoO x S y ).…”
Section: Resultssupporting
confidence: 85%
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“…230.9 eV corresponds well with the literature value of Mo 5 + 3d 5/2 . [16] In accordance with as tudy conducted by Tang et al, [17] the binding energy differenceb etween Mo 4 + and Mo 5 + has an approximate value of 1.3 eV.T his is in good agreement with the binding energyd ifferenceo bserved for the Mo 4 + 3d 5/2 at 229.5 eV and Mo (A) 3d 5/2 at 230.9 eV in the Riedel-de Hans ample. Another possible explanation is the presence of Mo 4 + in molybdenumo xysulfides (MoO x S y ).…”
Section: Resultssupporting
confidence: 85%
“…The difference in binding energies between S (A) and S (B) in this study is ca. 1.33 eV and is similar to the difference of 1.4 eV that was reported by Pham et al It is possible that the sample from Riedel‐de Haën contains MoO x S y impurities, or amorphous MoS 3 impurities, which could exist in the form of Mo 5+ (S 2 2− ) 1/2 (S 2− ) 2 accounting for the presence of Mo (A) . The amorphous nature of MoS 3 would not allow it to be identified by X‐ray diffraction (XRD), which was also performed (Figure S1) .…”
Section: Resultssupporting
confidence: 69%
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